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19.5 |
Water is at the bottom of the Iowa Highway 150 bridge. |
17.9 |
Water affects the lowest parts of Riverside Drive. |
17.5 |
Flood protection measures such as road closures and sandbagging begin. Water affects East 2nd Street at 3rd Avenue and North 3rd Avenue at East 3rd Street. |
15.0 |
Water affects much of 22nd Avenue Road. |
13.0 |
Water affects the lowest part of 22nd Avenue. |
12.5 |
Water affects the lowest part of 22nd Avenue Road. |
10.0 |
Water affects low lying agricultural land north of Vinton. Water also begins flowing through the bypass channel north of the river gauge. |
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![](https://webarchive.library.unt.edu/eot2008/20080925065447im_/http://www.crh.noaa.gov/images/ahps2/spacer.gif) |
Latitude: 42.170556° N,
Longitude: 92.023333° W,
Horizontal Datum:
NAD83
River Stage Reference Frame |
Gauge Height |
Flood Stage |
Uses |
NWS stage |
0 ft |
15 ft |
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps |
Vertical Datum |
Elevation (gauge height = 0) |
Elevation (gauge height = flood stage) |
Elevation information source |
NAVD88 |
N/A |
N/A |
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps |
NGVD 29 |
NULL |
NULL |
Older USGS topographic maps, NGVD29 benchmarks |
MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
Other |
N/A |
N/A |
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Hydrologic Resources
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Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here. |
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NWS Information |
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